Body Type Calculator

Body Type Calculator is a private-by-design web tool for anyone who wants a quick read on their body proportions from just three numbers. You enter an upper-body measurement (bust for women, chest or shoulder circumference for men), your natural waist, and the fullest part of your hips in either centimetres or inches. The base classification runs entirely in your browser using a fixed rule set, so the same measurements always produce the same result. Progressing from the entry fields, the tool draws a live proportion diagram that shifts as you type and immediately labels your category, such as hourglass, pear, apple, rectangle, or inverted triangle for women, and trapezoid, oval, triangle, or inverted triangle for men.

The optional AI layer is what sets this apart from a plain BMI-style calculator. If you consent, one front-facing photo plus your measurements are sent to an external AI processor (Pollinations) to generate a written explanation of your proportions. That step never changes the measurement-based classification — it only adds context. Crucially, the service is explicit about its limits: results describe clothing proportions and are not a health, weight, fitness, or attractiveness assessment, and it says so on every report.

The tool is built for quick, repeatable use. There is no account, no stored history, and no charge. Share links and downloadable result cards contain only your profile, type, rounded ratios, and a confidence label — photos and raw measurements are deliberately excluded, which makes it easy to share styling guidance without exposing personal data.